Answer by Nancy Hua:
I heard that the brain mainly records new events and your perception of time is based on the number of memories. This makes sense to me because I’m not likely to remember every time I go scuba diving but I’ll probably remember the first time. If I have no memory of last night it’ll feel like last night didn’t happen, like time skipped from yesterday to today, whereas if I stayed up all night talking with a new person it’ll feel like a really long day. This could explain the phenomena you’re describing and prescribe a solution.
When you’re a kid, everything is new, nothing has ever happened to you before (which is part of why kids are lured by strangers into cars, etc: they don’t know what’s normal). Thus your first summer at camp might feel like it’s lasted a million years- you feel yourself changing because your brain is experiencing and recording a lot of new events, meeting new people, and learning new ideas. The fraction of stuff that’s newly recorded in your brain is high, and you feel like time has passed slowly.
As our lives progress, the rate of learning and new experiences tends to slow. As you age and begin a career, you don’t learn new things as frequently. You’re gaining expertise and your community is not changing as much. Furthermore the probability of some event being new to your brain is lower- a monotonically increasing fraction of experiences will map to an existing memory. Because your brain doesn’t record as many new memories, time feels like it’s passing more quickly.
Maybe if you want to make time seem like it’s passing more slowly, you have to get your brain to form a lot of new connections. To do this, you can try to learn a lot of new things, go to new environments, and gain new experiences, which is going to be harder as time passes for obvious reasons, but should be getting easier as technology advances. The amount of information accessible to any person is always increasing, connections between people are always increasing, and travel frictions are constantly decreasing.
The model of getting good at one occupation and doing it repeatedly might make time seem to fly by unless you’re deliberate about it. You could deliberately choose to keep a level of failure in your work and life so that your’e always pushing yourself to become more of an expert and learning new things. Your brain will form new connections every time you go to a sufficiently different environment, so changing locations will make you feel like time is slower and that more stuff is happening to you because you’re forming new memories. Engaging with sufficiently different types of people will also stimulate you.